[Virginia Ridgerunner]

It is raised very high which is unusual. It is only speculation, but the height might have been to make a statement.

They're missing the obvious reason---a road that high with deep side ditches would make ambushing a passing Roman column from the woods very difficult.

[Walkingfeather]

damn good thought.

[PapaBear3625]

They're missing the obvious reason---a road that high with deep side ditches would make ambushing a passing Roman column from the woods very difficult.

Besides that, it allows water to drain away so the road stays dry, is not flooded by heavy rains, and also snow would tend to be blown off by winds into the ditches.